The ever-shifting phases of Earth's moon present a wealth of targets for amateur astronomers to explore, ranging from magnificent craters and lunar seas to strange visual phenomena created as sunlight ...

Earth's moon reaches its last quarter phase later this week! Read on to discover when and where to catch the fleeting lunar milestone, and what else to find in the nights surrounding May 20. The ...

We're now in the last lunar phase before the New Moon, which means we're almost at the end of this lunar cycle. The lunar cycle lasts about 29.5 days, during which the Moon completes a full orbit ...

Data collected by Orbiter V when it landed on the Moon in 1967 provide information about the history of the crater Tycho. Volcanic eruptions seem to have been involved in the crater's development.